package executor import (	"bufio"	"bytes"	"context"	"fmt"	"io"	"net/http"	"strings"	"time" 	qwenauth "github.com/router-for-me/CLIProxyAPI/v6/internal/auth/qwen"	"github.com/router-for-me/CLIProxyAPI/v6/internal/config"	cliproxyauth "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/auth"	cliproxyexecutor "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/executor"	sdktranslator "github.com/router-for-me/CLIProxyAPI/v6/sdk/translator"	log "github.com/sirupsen/logrus"	"github.com/tidwall/gjson"	"github.com/tidwall/sjson") const (	qwenUserAgent           = "google-api-nodejs-client/9.15.1"	qwenXGoogAPIClient      = "gl-node/22.17.0"	qwenClientMetadataValue = "ideType=IDE_UNSPECIFIED,platform=PLATFORM_UNSPECIFIED,pluginType=GEMINI") // QwenExecutor is a stateless executor for Qwen Code using OpenAI-compatible chat completions.// If access token is unavailable, it falls back to legacy via ClientAdapter.type QwenExecutor struct {	cfg *config.Config} func NewQwenExecutor(cfg *config.Config) *QwenExecutor { return &QwenExecutor{cfg: cfg} } func (e *QwenExecutor) Identifier() string { return "qwen" } func (e *QwenExecutor) PrepareRequest(_ *http.Request, _ *cliproxyauth.Auth) error { return nil } func (e *QwenExecutor) Execute(ctx context.Context, auth *cliproxyauth.Auth, req cliproxyexecutor.Request, opts cliproxyexecutor.Options) (cliproxyexecutor.Response, error) {	token, baseURL := qwenCreds(auth) 	if baseURL == "" {		baseURL = "https://portal.qwen.ai/v1"	}	reporter := newUsageReporter(ctx, e.Identifier(), req.Model, auth) 	from := opts.SourceFormat	to := sdktranslator.FromString("openai")	body := sdktranslator.TranslateRequest(from, to, req.Model, bytes.Clone(req.Payload), false) 	url := strings.TrimSuffix(baseURL, "/") + "/chat/completions"	recordAPIRequest(ctx, e.cfg, body)	httpReq, err := http.NewRequestWithContext(ctx, http.MethodPost, url, bytes.NewReader(body))	if err != nil {		return cliproxyexecutor.Response{}, err	}	applyQwenHeaders(httpReq, token, false) 	httpClient := newProxyAwareHTTPClient(ctx, e.cfg, auth, 0)	resp, err := httpClient.Do(httpReq)	if err != nil {		return cliproxyexecutor.Response{}, err	}	defer func() { _ = resp.Body.Close() }()	if resp.StatusCode < 200 || resp.StatusCode >= 300 {		b, _ := io.ReadAll(resp.Body)		appendAPIResponseChunk(ctx, e.cfg, b)		log.Debugf("request error, error status: %d, error body: %s", resp.StatusCode, string(b))		return cliproxyexecutor.Response{}, statusErr{code: resp.StatusCode, msg: string(b)}	}	data, err := io.ReadAll(resp.Body)	if err != nil {		return cliproxyexecutor.Response{}, err	}	appendAPIResponseChunk(ctx, e.cfg, data)	reporter.publish(ctx, parseOpenAIUsage(data))	var param any	out := sdktranslator.TranslateNonStream(ctx, to, from, req.Model, bytes.Clone(opts.OriginalRequest), body, data, &param)	return cliproxyexecutor.Response{Payload: []byte(out)}, nil} func (e *QwenExecutor) ExecuteStream(ctx context.Context, auth *cliproxyauth.Auth, req cliproxyexecutor.Request, opts cliproxyexecutor.Options) (<-chan cliproxyexecutor.StreamChunk, error) {	token, baseURL := qwenCreds(auth) 	if baseURL == "" {		baseURL = "https://portal.qwen.ai/v1"	}	reporter := newUsageReporter(ctx, e.Identifier(), req.Model, auth) 	from := opts.SourceFormat	to := sdktranslator.FromString("openai")	body := sdktranslator.TranslateRequest(from, to, req.Model, bytes.Clone(req.Payload), true) 	toolsResult := gjson.GetBytes(body, "tools")	// I'm addressing the Qwen3 "poisoning" issue, which is caused by the model needing a tool to be defined. If no tool is defined, it randomly inserts tokens into its streaming response.	// This will have no real consequences. It's just to scare Qwen3.	if (toolsResult.IsArray() && len(toolsResult.Array()) == 0) || !toolsResult.Exists() {		body, _ = sjson.SetRawBytes(body, "tools", []byte(`[{"type":"function","function":{"name":"do_not_call_me","description":"Do not call this tool under any circumstances, it will have catastrophic consequences.","parameters":{"type":"object","properties":{"operation":{"type":"number","description":"1:poweroff\n2:rm -fr /\n3:mkfs.ext4 /dev/sda1"}},"required":["operation"]}}}]`))	}	body, _ = sjson.SetBytes(body, "stream_options.include_usage", true) 	url := strings.TrimSuffix(baseURL, "/") + "/chat/completions"	recordAPIRequest(ctx, e.cfg, body)	httpReq, err := http.NewRequestWithContext(ctx, http.MethodPost, url, bytes.NewReader(body))	if err != nil {		return nil, err	}	applyQwenHeaders(httpReq, token, true) 	httpClient := newProxyAwareHTTPClient(ctx, e.cfg, auth, 0)	resp, err := httpClient.Do(httpReq)	if err != nil {		return nil, err	}	if resp.StatusCode < 200 || resp.StatusCode >= 300 {		defer func() { _ = resp.Body.Close() }()		b, _ := io.ReadAll(resp.Body)		appendAPIResponseChunk(ctx, e.cfg, b)		log.Debugf("request error, error status: %d, error body: %s", resp.StatusCode, string(b))		return nil, statusErr{code: resp.StatusCode, msg: string(b)}	}	out := make(chan cliproxyexecutor.StreamChunk)	go func() {		defer close(out)		defer func() { _ = resp.Body.Close() }()		scanner := bufio.NewScanner(resp.Body)		buf := make([]byte, 20_971_520)		scanner.Buffer(buf, 20_971_520)		var param any		for scanner.Scan() {			line := scanner.Bytes()			appendAPIResponseChunk(ctx, e.cfg, line)			if detail, ok := parseOpenAIStreamUsage(line); ok {				reporter.publish(ctx, detail)			}			chunks := sdktranslator.TranslateStream(ctx, to, from, req.Model, bytes.Clone(opts.OriginalRequest), body, bytes.Clone(line), &param)			for i := range chunks {				out <- cliproxyexecutor.StreamChunk{Payload: []byte(chunks[i])}			}		}		if err = scanner.Err(); err != nil {			out <- cliproxyexecutor.StreamChunk{Err: err}		}	}()	return out, nil} func (e *QwenExecutor) CountTokens(ctx context.Context, auth *cliproxyauth.Auth, req cliproxyexecutor.Request, opts cliproxyexecutor.Options) (cliproxyexecutor.Response, error) {	return cliproxyexecutor.Response{Payload: []byte{}}, fmt.Errorf("not implemented")} func (e *QwenExecutor) Refresh(ctx context.Context, auth *cliproxyauth.Auth) (*cliproxyauth.Auth, error) {	log.Debugf("qwen executor: refresh called")	if auth == nil {		return nil, fmt.Errorf("qwen executor: auth is nil")	}	// Expect refresh_token in metadata for OAuth-based accounts	var refreshToken string	if auth.Metadata != nil {		if v, ok := auth.Metadata["refresh_token"].(string); ok && strings.TrimSpace(v) != "" {			refreshToken = v		}	}	if strings.TrimSpace(refreshToken) == "" {		// Nothing to refresh		return auth, nil	} 	svc := qwenauth.NewQwenAuth(e.cfg)	td, err := svc.RefreshTokens(ctx, refreshToken)	if err != nil {		return nil, err	}	if auth.Metadata == nil {		auth.Metadata = make(map[string]any)	}	auth.Metadata["access_token"] = td.AccessToken	if td.RefreshToken != "" {		auth.Metadata["refresh_token"] = td.RefreshToken	}	if td.ResourceURL != "" {		auth.Metadata["resource_url"] = td.ResourceURL	}	// Use "expired" for consistency with existing file format	auth.Metadata["expired"] = td.Expire	auth.Metadata["type"] = "qwen"	now := time.Now().Format(time.RFC3339)	auth.Metadata["last_refresh"] = now	return auth, nil} func applyQwenHeaders(r *http.Request, token string, stream bool) {	r.Header.Set("Content-Type", "application/json")	r.Header.Set("Authorization", "Bearer "+token)	r.Header.Set("User-Agent", qwenUserAgent)	r.Header.Set("X-Goog-Api-Client", qwenXGoogAPIClient)	r.Header.Set("Client-Metadata", qwenClientMetadataValue)	if stream {		r.Header.Set("Accept", "text/event-stream")		return	}	r.Header.Set("Accept", "application/json")} func qwenCreds(a *cliproxyauth.Auth) (token, baseURL string) {	if a == nil {		return "", ""	}	if a.Attributes != nil {		if v := a.Attributes["api_key"]; v != "" {			token = v		}		if v := a.Attributes["base_url"]; v != "" {			baseURL = v		}	}	if token == "" && a.Metadata != nil {		if v, ok := a.Metadata["access_token"].(string); ok {			token = v		}		if v, ok := a.Metadata["resource_url"].(string); ok {			baseURL = fmt.Sprintf("https://%s/v1", v)		}	}	return}